Problem Statement

Given an integer array A of size N containing 0's and 1's only.

You need to find the length of the longest subarray having count of 1’s one more than count of 0’s.

Problem Constraints

1 <= N <= 105

Input Format

First and only argument is an integer array A of size N.

Output Format

Return an integer denoting the longest length of the subarray.

Example Input

Input 1:

 A = [0, 1, 1, 0, 0, 1]

Input 2:

 A = [1, 0, 0, 1, 0]

Example Output

Output 1:

 5

Output 2:

 1

Example Explanation